Battery-charging connection for potential charging



June 12, 1928. 1,673,086

G. E. LUNDBERG' BATTERY CHARGING CONNECTION FORTb-TENTIAL CHARGING Filed April 8, 19,27

\ INVENTOR. GuJTd eZLunoZer BY 4 Q Q W ATTORNEYS. J

Patented June 12, 1928.

UNITED STATES GUSTAVE E. LUNDBERG, OF KEWANEE, ILLINOIS.

BATTERY-CHARGING CONNECTION FOB POTENTIAL CHARGING,

Application filed April 8, 1927. Serial No. 182,092.

This invention relates to a battery charging connection for potential charging.

The object of the invention is the construction of a simple and efficient connection, whereby the battery to be charged can be easily and quickly attached or detached from the supply circuit such as copper bus bars.

I'Vith the foregoing and other objects in view, my invention comprises certain novel constructions, combinations and arrangements of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and more particularly Zpointed out in the appended claims.

In the drawings:

Figure 1 is a View in elevation, showing how a. number of batteries are connected by using my device, to the supply circuit, which in the present instance are two bus, copper bars.

Figure 2 is a side View of my connection, while Figure 3 is a rear View of the same.

Figure 4 is a vertical central sectional view of the device.

Referring to the drawings by numerals, '1 indicates an inverted substantially U- shaped body, having an elongated tapering socket 2, into which fits a bar, when the connection is applied to the bars 3. The portion 4 of body 1 is cylindrical in shape, and is provided with a longitudinally extending socket 5 for receiving the insulated wire 6. An auxiliary tapering socket 'i' extends through a part of portion 4, communicating at its inner smaller end with socket 5. When the insulated wire 6 is forced into socket 5, the inner end of said wire can be placed in auxiliary tapering socket 7 and held therein against the wall of the socket by means of a lead plug 8; the bent end of wire 6 in socket 6 forming a hook-like structure for further assisting in holding wire 6 securely in place. If a new wire 6 is to be placed in the body 1, this can be done by using a hot iron, such as a soldering iron, melting the plug 8, whereupon the old wire 6 can be easily and quickly withdrawn from the socket 5.

It is to be noted that I have provided a body having a bar receiving socket, and also provided with an insulated wire receiving socket, communicating with a fusible tapering plug receiving socket. WVhile I have mentioned lead as being the kind of plug used in socket 7, any fusibleplug may be used that can be easily removed by applying a hot iron thereto, without impairing in the least, the body 1.

The connection being of all lead, will not corrode on account of the fumes from the acid which is thrown off of the batteries. The wire 6, with its insulation, has no chance of corroding in the body, by reason of being so securely embedded in said connection. The devices can be readily removed from the bus bars 3, so that the bus bars can be polished, to increase their attractiveness as well as to produce good contacts.

In applying the devices to the bars 3, just give a firm push with a light twist, and the devices will hold to the bus bars just as tight as any screw clamp, owing to the tapered structure of sockets 2. When the devices are to be removed from said bars, just reverse the process by lifting and giving a slight twist, and the devices will release from the bars, which makes a very fast operation.

While I have described the preferred embodiment of my invention and illustrated the same in the accompanying drawings, certain minor changes and alterations may appear to one skilled in the art to which this invention relates, during the extensive manufacture of the same, and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claims.

It will be appreciated" upon referring to Figure 4 that the conical shape of socket 7 makes it possible to bend the outer end of wire 6 down. which forms a hook structure, eflioient-ly holding the insulated wire in the device while the fusible conical plug 8 is being formed in socket 7. Therefore, it will be seen that a double fastening means is produced, for holding the insulated wire in the device, by reason of the peculiar formation of socket 7 and plug 8, as well as the securing action obtained by the plug 8 itself.

\Vhat I claim is:

1. In a device of the class described, the combination of a body provided with means for receiving a bar, said body provided with a wire-receiving socket and with an auxiliary tapering socket, said auxiliary tape-ring socket having its inner smaller end opening into said wire receiving socket,

a wire in said wire receiving socket and ex- Wire-receiving socketclosedat its inner end,'

said body provided With an auxiliary taperingi socket opening into-said Wirereceiving socket near its inner end, a Wire in said Wire receiving socket, and bent into said auxiliary tapering socket against one of its Walls, and a fusible plug fillingsziid auxiliary tapering socket and fixedly holding the Wire thereinfl In testimony whereof I hereunto afiix my signature, v

' GUSTAVE E. LUNDBERG. 

